Finding the Fourth Proportional to 6,043.90, 9,090.15 and 5,412.10

Step by Step Solution

1. Step 1: Write the proportion equation
   6,043.90 : 9,090.15 = 5,412.10 : x
2. Step 2: Convert to fraction form
   6,043.90/9,090.15 = 5,412.10/x
3. Step 3: Cross multiply
   6,043.90x = 9,090.15 × 5,412.10
4. Step 4: Simplify right side
   6,043.90x = 49,196,800.82
5. Step 5: Solve for x
   x = 49,196,800.82/6,043.90
6. Step 6: Final answer
   x = 8,139.91